METHOD AND FACILITY FOR FREE-FORM SURFACE MACHINING Russian patent published in 2009 - IPC B23C3/18 G05B19/41 

FIELD: metallurgy.

SUBSTANCE: method includes migration of tools by defined by splines pathes. Splines are point - to point calculated, this point are stored in CAD and CAM systems in coordinate system related to treated detail or in coordinate system of machine tool. Tool path is formed on the basis of six splines, if control points are defined in coordinate system related to treated detail, and on the basis of five splines, if control points are defined in coordinate system of machine tool, with independent spline forming for each coordinate. Facility contains programmer for tool path programming and, at least one tool motion controller by defined by spline pathes. For achieving the same technical result programmer is implemented in the form of CAD/CAM system, containing functionally related to programmer facilities for splines calculation by control points, stored in CAD/CAM system. Additionally mentioned facilities are implemented with ability of tool path forming on the basis of six splines, if control points are defined in related coordinate system of treated detail, and on the basis of five splines, if coordinate pointed are specified in coordinate system of machine tool, with independent spline forming for each coordinate. CAD/CAM system is implemented with ability of creation at least one APT-file, converted at least by one following postprocessor into at least one control file executable by control unit. Additionally control unit is provided for migration of tools control lengthwise its path on the basis of corresponding splines.

EFFECT: improvement of treated surface.

4 cl, 3 dwg